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/*
* Copyright (c) 2023 The WebM project authors. All rights reserved.
* Copyright (c) 2023, Alliance for Open Media. All rights reserved.
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <arm_neon.h>
#include <assert.h>
#include "config/aom_config.h"
#include "config/aom_dsp_rtcd.h"
#include "aom_dsp/arm/blend_neon.h"
#include "aom_dsp/arm/dist_wtd_avg_neon.h"
#include "aom_dsp/arm/mem_neon.h"
#include "aom_dsp/blend.h"
void aom_highbd_comp_avg_pred_neon(uint8_t *comp_pred8, const uint8_t *pred8,
int width, int height, const uint8_t *ref8,
int ref_stride) {
const uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
const uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
uint16_t *comp_pred = CONVERT_TO_SHORTPTR(comp_pred8);
int i = height;
if (width > 8) {
do {
int j = 0;
do {
const uint16x8_t p = vld1q_u16(pred + j);
const uint16x8_t r = vld1q_u16(ref + j);
uint16x8_t avg = vrhaddq_u16(p, r);
vst1q_u16(comp_pred + j, avg);
j += 8;
} while (j < width);
comp_pred += width;
pred += width;
ref += ref_stride;
} while (--i != 0);
} else if (width == 8) {
do {
const uint16x8_t p = vld1q_u16(pred);
const uint16x8_t r = vld1q_u16(ref);
uint16x8_t avg = vrhaddq_u16(p, r);
vst1q_u16(comp_pred, avg);
comp_pred += width;
pred += width;
ref += ref_stride;
} while (--i != 0);
} else {
assert(width == 4);
do {
const uint16x4_t p = vld1_u16(pred);
const uint16x4_t r = vld1_u16(ref);
uint16x4_t avg = vrhadd_u16(p, r);
vst1_u16(comp_pred, avg);
comp_pred += width;
pred += width;
ref += ref_stride;
} while (--i != 0);
}
}
void aom_highbd_comp_mask_pred_neon(uint8_t *comp_pred8, const uint8_t *pred8,
int width, int height, const uint8_t *ref8,
int ref_stride, const uint8_t *mask,
int mask_stride, int invert_mask) {
uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
uint16_t *comp_pred = CONVERT_TO_SHORTPTR(comp_pred8);
const uint16_t *src0 = invert_mask ? pred : ref;
const uint16_t *src1 = invert_mask ? ref : pred;
const int src_stride0 = invert_mask ? width : ref_stride;
const int src_stride1 = invert_mask ? ref_stride : width;
if (width >= 8) {
do {
int j = 0;
do {
const uint16x8_t s0 = vld1q_u16(src0 + j);
const uint16x8_t s1 = vld1q_u16(src1 + j);
const uint16x8_t m0 = vmovl_u8(vld1_u8(mask + j));
uint16x8_t blend_u16 = alpha_blend_a64_u16x8(m0, s0, s1);
vst1q_u16(comp_pred + j, blend_u16);
j += 8;
} while (j < width);
src0 += src_stride0;
src1 += src_stride1;
mask += mask_stride;
comp_pred += width;
} while (--height != 0);
} else {
assert(width == 4);
do {
const uint16x4_t s0 = vld1_u16(src0);
const uint16x4_t s1 = vld1_u16(src1);
const uint16x4_t m0 = vget_low_u16(vmovl_u8(load_unaligned_u8_4x1(mask)));
uint16x4_t blend_u16 = alpha_blend_a64_u16x4(m0, s0, s1);
vst1_u16(comp_pred, blend_u16);
src0 += src_stride0;
src1 += src_stride1;
mask += mask_stride;
comp_pred += 4;
} while (--height != 0);
}
}